Wrench.



PATENTED DEG. 6, 1904.

P. F. DUROSS.

WRENCH.

APPLICATION 111mm 1330.1, 190s.

no MODEL.

ATTOHN Patented December 6, 1904.

PATENT OEEICE.

PATRICK F. DUROSS, OF NEW YORK, N. Y.

WRENCH.

SPECIFICATION forming part of Letters Patent No 777,009, dated Decemberb", 1904.

Application ilcd December 1,1908. Serial No. 183,340. (No model.)

To all whom, t may concern:

Be it known that 1, PATRICK F. Dunoss, a citizen of the United States,and a resident of the city of New York, (Flushing, borough of Queens.)in the county of Queens and State of New York, have invented a new andImproved Wrench, of which the following' is a full, clear, and exactdescription.

The purpose of my invention is to provide a wrench which is primarily apipe-wrench and is of simple, durable, and economic construction, thesaid wrench being so constructed that it may be quickly and convenientlyadjusted to take various sizes of nuts or different sizes of pipes andso that it will act with a maximum of power on the article gripped, butwithout a tendency to unduly mutilate or mar the article.

A further purpose of the invention is to construct the wrench in suchmanner that the pressure exerted thereon in operation will serve tocause the jaws of the wrench to firmly bind or grip the article to whichthey are applied, such jaws being readily disengaged from the article assoon as the handle is relieved from pressure.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying' drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both the figures.

Figure 1 is a side elevation of the improved wrench, and Fig. 2 is aplan view of the same.

The handle A for the wrench is provided with a concaved surface at itsouter end, forming a jaw 10, and is further provided with teeth 11 atits upper' edge and with studs 12 and 12, ordinarily located adjacent toits lower edge.

A yoke-strap 13, open at the top, is made to loosely straddle the handleA and has free movement between the studs 12 and 12a. A

pawl 141 is located at the open end of the strap 13, adapted to engagewith the teeth 11 on the handle, and the said pawl is provided with ahandle-section 15, whereby it may be quickly raised from engagement withthe teeth 11, and a pivot-pin 16 is passed through the open end of theyoke-strap 18, acting as a fulcrum for the pawl 111 and likewise as afulcrum for two forwardly-extending arms 17.

The body B of the wrench is of link construction and is formed asfollows: The said body consists of a long forward yoke-head 18 and ashorter rear yoke-head 19, both heads being closed at their ends whichare adjacent to the handle, being open at their opposite ends. The arms17 are pivoted, preferably exteriorly, at the lower side portions of theshorter or rear head 19 by means of a suitable pivot-pin 20. The twoheads 18 and 19 are connected at their outer or open ends by aconnectingbar 21, which is carried between the members of the heads andis pivoted to the forward or longer head 18 by a pivot-pin 2Q. and tothe rear or shorter head 19 by a corresponding pivot-pin 22. Links 23also connect the two heads 18 and 19 at points about centrally betweentheir ends. These links engage with the outer faces of the heads 18 and19 and are pivoted to the head 18 by means of a suitable bolt 24k or itsequivalent, while a corresponding bolt 24 serves to pivot the said linksto the rear and shorter head 19.

A jaw 25, which is opposed to the jaw 10 on the handle, is carried bythe lower portion of the forward or long yoke-head18, being pivoted inthe said head by means of a suitable pin 98, passed through an extensionQ7 from the said jaw 25. r1`he jaw 25 is usually provided with teeth 26at the face opposite the jaw 10 on the handle, and the toothed orgripping surface ofthe jaw 25 may be straight or may be curved, asdesired.

It will be readily observed that the jaw 25 is removable and may bereplaced whenever desired by a jaw best adapted for the work at hand.

In the drawings I have illustrated a pipe O as held between the two jaws1() and 25, and it will be observed the more pressure that is exertedupon the handle in direction of the pipe the more firmly will the jaws10 and Q5 take hold of the pipe, owing' to the link connections betweenthe two heads of the body and the connection between the body and thehandle. 1t is furthermore obvious that the wrench may be adjusted totake any sized pipe within a large range of sizes, as it is simplynecessary in adjustment to raise the pawl 14 and draw the handle forwardor backward until the desired distance is obtained between the two jaws,at which time the pawl 14 is made to engage with a convenient tooth 11on the handle.

Having thus described my invention,I claim as new and desire to secureby Letters Patentl. In a wrench, a body consisting of opposinglongitudinal heads, a link connecting said heads at theirl upper ends, asecond link connecting the heads between said first link and their lowerends, a handle extending at right angles to said heads, a strap throughwhich said handle has endwise movement, a link connecting said strapwith the lower end of one of said heads, a jaw on the opposing` lowerend of the other head, the inner end ot' the handle being' adapted tocooperate with said jaw, and means for locking said strap in adjustedposition on said handle.

2. A wrench consisting of opposing' heads, a long and a short head, ajaw removably and pivotally carried by the longer head, link connectionsbetween the two heads, a handle having teeth in one edge and a jawformed at one end, a strap in which the handle has movement, a linkconnection between the strap and the shorter head of the body, and apawl carried by the said strap for engagement with the teeth on thehandle, as described.

3. A wrench consisting of a body, comprising a long and a shortyoke-head, a jaw pivotally and removably carried by the longer head,links pivotally connecting the two heads, a handle having teeth at oneedge and a jaw formed at one end, a yoke-strap in which the handle haslimited movement, links pivotally connecting the yoke-strap withtheshorter head of the body, and a pawl pivoted in the said strap forengagement with the teeth on the handle, for the purposes set forth.

4. ln a wrench, a handle having a jaw on one end thereof, a bodyconsisting of opposing yoke heads, link connections pivotally unitingthe heads, a jaw carried by one of the yoke-heads to cooperate with thejaw on the end ot' the handle, a strap in which the handle has movement,a link connection between the said strap and the other one of saidyokeheads, and a locking device for the body.

5. A wrench consisting of a handle, a jaw on the forward end thereof,ratchet-notches on said handle at the rear of said jaw, a strap havinglongitudinal movement on said handle, a pawl carried by said strap andadapted to engage said ratchet-notches, a long and a short yoke-head, alink connecting said heads together at their upper ends, a second linkconnecting said heads between their ends, a jaw pivotally and removablycarried by the longer yoke-head at its free end, and a link pivotallyconnecting the free end of the shorter head with said handle-strap.

6. In a wrench, a handle having a jaw on one end thereof, a bodyconsisting oi opposing yoke-heads, link connections pivotally unitingthe heads, a jaw carried by one of the yoke-heads to cooperate with thejaw on the end of the handle, a strap in which the handle has movement,a link connection between the said strap and the other one of saidyokeheads, and a locking device for the body, as scribed.

In testimony whereof l have signed my name to this specilication in thepresence of two subscribing witnesses.

PATRICK F. DUROSS.

Witnesses:

LAWRENCE FOGARTY, GEORGE E. HEBEL.

